Coleman's pygmy seahorse (Hippocampus colemani) is a species of fish of the family Syngnathidae.

[1] It lives in coarse sand and Zostera and Halophila sea grasses at depths around 5 metres (16 ft).

Ovoviviparous reproduction is also expected, with males brooding eggs in a pouch before giving birth to live young.

[1] Named after Neville Coleman, an Australian diver and publisher of several popular books on diving and marine biology of the South Pacific area.

[1] Colouration is generally pale whitish to yellowish, with white circular or elliptical markings outlined with narrow red lines on the trunk, dusky brown bands radiating from the eye, brownish-red appendages, and a slightly brownish tail with red markings.